本题目来源于试卷: Parameters and Typical Relationship，类别为 美国物理杯赛(Physics Bowl)
[单选题]
14.08: A 2.50 g mass connected to the endup-w7atw kum:02 +cyc of an ideal spr0jbeg x/)y0 l :gya6tring oscillates in simple harmonic motion. The mass’s position is deljtgy0 6/0xb )earg y:scribed as a function of time by x(t) =0.20 cos(8.00 t + 0.50) where all quantities are in base SI units. Which one of the following choices gives the numerical value of the oscillation’s amplitude in base SI units?
A. 8.00
B. 4.00
C. 1.60
D. 0.50
E. 0.20
参考答案: E
本题详细解析:
暂无
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